package best.driver.android.Utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5 {
    
    private static final char HEX_DIGITS[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
        'a', 'b', 'c', 'd', 'e', 'f' };

    //String to byte
    public static String toHexString(byte[] b) {
        StringBuilder sb = new StringBuilder(b.length * 2);
        for (int i = 0; i < b.length; i++) {  
            sb.append(HEX_DIGITS[(b[i] & 0xf0) >>> 4]);  
            sb.append(HEX_DIGITS[b[i] & 0x0f]);  
        }
        return sb.toString();
    }

    public static String md5(String str) {
        try {
            // Create MD5 Hash
            MessageDigest digest = MessageDigest.getInstance("MD5");
            digest.update(str.getBytes());
            byte messageDigest[] = digest.digest();

            return toHexString(messageDigest);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return "";
    }
}
